Mortgage prepayment calculator
Estimate payment, term and interest savings after an early repayment
Enter the original loan, payments made and extra principal, then choose payment or term reduction.
Excludes booking dates, penalties, minimum amounts and lender approval rules.
Calculation result
Example
Input
Original CNY 1,000,000 · 30 years · 60 paid · prepay CNY 200,000
Example result
Balance, revised payment or term, and estimated interest saved
Interest saved does not subtract penalties or other costs.
Technical details & limits
Computes the old-plan balance, subtracts prepaid principal, then recalculates at the new rate. The shorter-term option targets roughly the old payment.
About this tool
Estimate the balance, revised payment or term, and remaining interest after a mortgage prepayment.
FAQ
- Does the prepayment include current interest?
- Enter only the extra principal repaid.
- How is the shorter term estimated?
- It finds an integer term whose payment stays near the old plan.
- Can this replace a lender quote?
- No. Use the lender's payoff quote for actual settlement and penalties.
- Should penalties be deducted from interest saved?
- Yes. This page excludes contractual penalties and processing costs.
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